snip
Not sure if the "tunnel effect" is helpful or hurtful, that kind of
hydrodynamics is very picky.



On FLying Tadpole the FIrst, it was hurtful until I got the leeboards
the right distance out and the right toe-in, then it was helpful...


Toe-in is "tunnel effect"? I thought you mean the pressure change due to
flow between the hull & leeboard.


No, the distance I had the leeboards out from the hull was one
thing and their toe-in another (FT1 had leeboards mounted on an
outrigger boom, not directly on the canoe's hull. And the hull
was still widening at the point the boom crossed it, so water
flow faced a constrciting passage, not parallel. A few cm in or
out made a surprisign difference. Then I fiddled with the toe in .)

BTW a centerboard can be set to angle itslef slightly to windward, just
like toe-in with leeboards, bilgeboards, or catamaran foils. This used
to be called a "gybing" board and it's a big help.
snip

FWIW I agree about schooners. I have only sailed a few but always
admired them tremendously. Here it's commonly said that schooners are an
American rig, even an American invention, but one sees native schooner
types all over the world. I'm sad to hear you're planning on selling
FT2, it has been a pleasure to sail her vicariously.

BTW did I ever send you that picture of the FT2 sistership with the box
cabin?

Yes thanks. One day when I finally update the Light Schooner
page I will put it up.

--
Flying Tadpole

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